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Top Forums Shell Programming and Scripting Find all matching words in text according to pattern Post 302825987 by radoulov on Tuesday 25th of June 2013 03:14:45 PM
Old 06-25-2013
Quote:
Originally Posted by Grünspanix
But now I realize: you use the first as anchor character "^" to define, that at the beginning of the line the following expression in '(...)' must follow. I was confused initially as the grymoire docs described the anchor to be used "on the beginning of a line" - and then I wasn't sure where the "line" was in this case. Was it the original "$line" or the splitted parts of the line? Obviously in this case every splitted part is its own "line". Thats why it works. Eventually I understood Smilie
Correct, perhaps "the beginning of the string" would be more appropriate.

Quote:
Regarding Perl: yeah, there was the choice between perl or bash scripts and then the thought came "use something which is always available and more down-to-earth" - and the decision fell to default shell scripts.

While it is an interesting learning experience I have previously used some perl and it was way more comfortable. I am not sure the pure shellscripting decision was right after all, especially seeing that perl is installed on most unix machines anyways...sigh, but what can you do.
That's OK, actually. I almost always use only pure shell scripting too, but Perl makes the string manipulation really, really easy.
Moreover, Perl is often available even where bash is not (an old HP-UX springs to mind Smilie).
 

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CREATE TEXT SEARCH 
DICTIONARY(7) PostgreSQL 9.2.7 Documentation CREATE TEXT SEARCH DICTIONARY(7) NAME
CREATE_TEXT_SEARCH_DICTIONARY - define a new text search dictionary SYNOPSIS
CREATE TEXT SEARCH DICTIONARY name ( TEMPLATE = template [, option = value [, ... ]] ) DESCRIPTION
CREATE TEXT SEARCH DICTIONARY creates a new text search dictionary. A text search dictionary specifies a way of recognizing interesting or uninteresting words for searching. A dictionary depends on a text search template, which specifies the functions that actually perform the work. Typically the dictionary provides some options that control the detailed behavior of the template's functions. If a schema name is given then the text search dictionary is created in the specified schema. Otherwise it is created in the current schema. The user who defines a text search dictionary becomes its owner. Refer to Chapter 12, Full Text Search, in the documentation for further information. PARAMETERS
name The name of the text search dictionary to be created. The name can be schema-qualified. template The name of the text search template that will define the basic behavior of this dictionary. option The name of a template-specific option to be set for this dictionary. value The value to use for a template-specific option. If the value is not a simple identifier or number, it must be quoted (but you can always quote it, if you wish). The options can appear in any order. EXAMPLES
The following example command creates a Snowball-based dictionary with a nonstandard list of stop words. CREATE TEXT SEARCH DICTIONARY my_russian ( template = snowball, language = russian, stopwords = myrussian ); COMPATIBILITY
There is no CREATE TEXT SEARCH DICTIONARY statement in the SQL standard. SEE ALSO
ALTER TEXT SEARCH DICTIONARY (ALTER_TEXT_SEARCH_DICTIONARY(7)), DROP TEXT SEARCH DICTIONARY (DROP_TEXT_SEARCH_DICTIONARY(7)) PostgreSQL 9.2.7 2014-02-17 CREATE TEXT SEARCH DICTIONARY(7)
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